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Chemical Characteristics of Water-Soluble Ions in Particulate Matter in Three Metropolitan Areas in the North China Plain
- Xu Dao,
- Zhen Wang,
- Yibing Lv,
- Enjiang Teng,
- Linlin Zhang,
- Chao Wang
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- Published: December 1, 2014
- https://doi.org/10.1371/journal.pone.0113831